论文标题
相互作用在玻色爱因斯坦冷凝水的干扰模式中的影响
Effect of interactions in the interference pattern of Bose Einstein condensates
论文作者
论文摘要
了解相互作用在扩展原子bose爱因斯坦冷凝物的相位演变中的影响是描述物质波干扰的基本现象的基础。许多理论和实验著作都解决了这个问题，总是隐含的假设，即两个扩展的冷凝水之间的相互作用严格地通过有效的力来改变相位的演变。在本文中，我们介绍了扩展$^{87} $ rb冷凝物的干扰曲线的合并实验和理论研究，并特别关注相互作用的效果。我们得出不同的结论，即相互相互作用仅在波袋重叠的区域中产生冷凝水相的局部修饰。
Understanding the effect of interactions in the phase evolution of expanding atomic Bose Einstein condensates is fundamental to describe the basic phenomenon of matter wave interference. Many theoretical and experimental works tackled this problem, always with the implicit assumption that the mutual interaction between two expanding condensates rigidly modifies the phase evolution through an effective force. In this paper, we present a combined experimental and theoretical investigation of the interference profile of expanding $^{87}$Rb condensates, with a specific focus on the effect of interactions. We come to the different conclusion that the mutual interaction produces local modifications of the condensate phase only in the region where the wavepackets overlap.
